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My kid is doing a science project on acid rain.
I want to test the ph of rain water.
normal rain has a ph of 5.6, so I need to test from the 5 to 6 scale.
Is there a way using dilution of a known ph liquid to use my pool test kit? or maybe use a half sample?
No, you will need a different indicator dye that tests in the pH range you need. Phenol red (used for pool pH testing) has a lower limit of 6.8 and an upper limit of 8.2.
Suitable indicators for the pH range you are looking at would be methyl red, a blended litmus, or a wide range pH paper that can be had from a scientific supply.
thanks.
I ran out today and found a fish tank ph test kit that tests down to 6.0, so I believe that will work.
Not if you need to test a range from 5 to 6.